Oise is a department in the north of France. It is named after the river Oise
Oise Intermediate Section, Headquarters at Fontainebleau
See page 351 here & page 380 here
In September plans called for the creation of two additional sections to complete the continental COMZ organization. One of these was to be the Oise Section, which was scheduled to take over the area east of Paris as territory was relinquished by the Advance Section; the other was to be Channel Base Section, scheduled to develop the Le Havre-Rouen area. Both sections were activated and began operations in September, although the assignment of their respective missions was attended by some confusion.
It will be recalled that originally Colonel Jacobs had tentatively been given command of Base Section No. 3 and a planning mission for the Continent. Early in August the transfer of the bulk of his headquarters to Cherbourg to build up Colonel Wyman's organization had left Colonel Jacobs without a command. Later in the month another headquarters, known as Base Section No. 4, was constituted with Colonel Jacobs in command, and tagged as an intermediate section. On 3 September this headquarters was officially redesignated Oise Section and opened at Fontainebleau.
A week later Channel Base Section was activated under the command of General Thrasher, who was given this assignment rather than that of deputy commander of the U.K. Base. Before either Oise or Channel could actually become operational, however, it was decided to switch their missions because Colonel Jacobs' organization was considered better qualified by reason of its personnel and experience for port development and operation. Consequently on 15 September the original Oise Section was redesignated Channel Base Section, under the command of Colonel Jacobs, and Channel Base Section was renamed Oise and placed under the command of General Thrasher.
Neither of the two newly activated sections was immediately assigned area responsibility. Channel Base Section presented a special problem because it was to operate ports lying in British territory, north of the boundary between the 21 and 12th Army Groups. Its operations thus required crossing British lines of communication and violated the principle established by the OVERLORD planners that U.S. and British lines of communication should be kept completely separate. The resulting situation paralleled closely the relationship between British and American forces at ports in the United Kingdom, and naturally called for close co-operation. Early in October Channel Base Section was given control of Le Havre and the immediate vicinity except for civil affairs functions, thus becoming a small enclave within British-controlled territory. U.S. activities in the British territory--transportation, for example--were handled by Normandy Base Section west of the Seine and by Channel Base Section east of that river.
Oise Section's development, meanwhile, was somewhat arrested, and not strictly in keeping with original intentions. The drawing of boundaries and the assignment of a definite territory to General Thrasher's headquarters proved infeasible at first because of the lack of troops to carry out area responsibilities. For the first weeks, therefore, Oise Section functioned in territory actually assigned to the Advance Section. Communications Zone redrew the latter's boundaries early in October, and Oise at that time assumed area control of the territory between the Advance Section and Seine Section. Its domain subsequently grew several times as the changes in Advance Section's boundaries conformed with the forward movement of the armies. The bad logistic situation in the fall meanwhile made it impossible for Oise Section to develop into a true intermediate section as intended. Almost all supplies forwarded in September and October were immediately consumed, with the result that few intermediate depots could be established. Consequently Oise Section's functions were limited mainly to rail and road maintenance and the supply of units stationed within its own borders.
Source: Logistical Support of the Armies: September 1944 to May 1945, Roland G. Ruppenthal
Edited by Salvage Sailor, 06 February 2020 - 06:41 PM.